Bug 54987

Summary:

Crash beneath WebPageProxy::viewWillStartLiveResize when resizing window after web process crashed

Product:

WebKit

Reporter:

Adam Roben (:aroben) <aroben>

Component:

WebKit2

Assignee:

Beth Dakin <bdakin>

Status:

RESOLVED FIXED

Severity:

Normal

CC:

andersca, bdakin, sam

Priority:

Keywords:

InRadar, PlatformOnly

Version:

528+ (Nightly build)

Hardware:

OS:

OS X 10.5

Attachments:

Description	Flags
Patch	darin: review+

Adam Roben (:aroben)

Reported 2011-02-22 12:40:44 PST

To reproduce: 1. Kill the web process 2. Resize the window The UI process will crash beneath WebPageProxy::viewWillStartLiveResize. viewWillStartLiveResize is dereferencing a null WebProcessProxy. Here's the backtrace: #0 0x021a9f43 in WTF::RefPtr<WebKit::ProcessLauncher>::operator WebKit::ProcessLauncher* WTF::RefPtr<WebKit::ProcessLauncher>::* (this=0x48) at RefPtr.h:72 #1 0x021a7d12 in WebKit::WebProcessProxy::isLaunching (this=0x0) at WebProcessProxy.cpp:132 #2 0x021a841a in WebKit::WebProcessProxy::sendMessage (this=0x0, messageID={m_messageID = 655366}, arguments=@0xbfffe2d8, messageSendFlags=0) at WebProcessProxy.cpp:118 #3 0x021756a8 in WebKit::WebProcessProxy::send<Messages::WebPage::ViewWillStartLiveResize> (this=0x0, message=@0xbfffe338, destinationID=1, messageSendFlags=0) at WebProcessProxy.h:174 #4 0x021511bb in WebKit::WebPageProxy::viewWillStartLiveResize (this=0x889f200) at WebPageProxy.cpp:536 #5 0x021ca19b in -[WKView viewWillStartLiveResize] (self=0xa048560, _cmd=0x99775486) at WKView.mm:302 #6 0x98f54dc8 in -[NSView _startLiveResizeCacheOK:] () #7 0x98f54e9f in -[NSView _startLiveResizeCacheOK:] () #8 0x98f54e9f in -[NSView _startLiveResizeCacheOK:] () #9 0x98f54e9f in -[NSView _startLiveResizeCacheOK:] () #10 0x98f54e9f in -[NSView _startLiveResizeCacheOK:] () #11 0x98f54e9f in -[NSView _startLiveResizeCacheOK:] () #12 0x98f54e9f in -[NSView _startLiveResizeCacheOK:] () #13 0x98f54e9f in -[NSView _startLiveResizeCacheOK:] () #14 0x98f54e9f in -[NSView _startLiveResizeCacheOK:] () #15 0x98f54d68 in -[NSView _startLiveResize] () #16 0x98f54ce2 in -[NSView _startLiveResizeAsTopLevel] () #17 0x98f54cb7 in -[NSThemeFrame _startLiveResizeAsTopLevel] () #18 0x98f54c11 in -[NSWindow _startLiveResize] () #19 0x996880f0 in -[NSWindow(NSWindowResizing) _resizeWithEvent:] () #20 0x98f54a62 in -[NSTitledFrame resizeWithEvent:] () #21 0x98f54370 in -[NSTitledFrame mouseDown:] () #22 0x98f542ad in -[NSThemeFrame mouseDown:] () #23 0x98ef07f5 in -[NSWindow sendEvent:] ()

Attachments
Patch (1.82 KB, patch) 2011-03-16 16:42 PDT, Beth Dakin	darin: review+	Details Formatted Diff Diff
View All Add attachment proposed patch, testcase, etc.

Adam Roben (:aroben)

Comment 1 2011-02-22 12:41:46 PST

<rdar://problem/9037685>

Beth Dakin

Comment 2 2011-03-16 16:42:52 PDT

Created attachment 85999 [details] Patch

Beth Dakin

Comment 3 2011-03-16 16:44:17 PDT

I also patched WebPageProxy::initializeUIClient() since I hit the crash there after fixing the live resize spots.

Beth Dakin

Comment 4 2011-03-16 16:51:58 PDT

Thanks Darin! Fixed with revision 81292.

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